Alex Berezow’s Articles in BBC News

It’s difficult to keep a conspiracy under wraps, scientists say, because sooner or later, one of the conspirators will blow its cover. A study has examined how long alleged conspiracies could “survive” before being revealed – deliberately or unwittingly – to the public at large.

Over the past 450 million years, life on Earth has been devastated by five mass extinction events that are widely recognised by geologists. Now, an international team of researchers proposes adding a sixth mass extinction to the list.